<?php
/**
 * Created by PhpStorm.
 * User: skytop
 * Date: 2017/2/3
 * Time: 18:47
 */
//1.PDO简介
#PDO(PHP Data Object),数据库访问抽象层,统一各种数据库的访问接口

#Good
$fruit=array(
    'a'=>'apple',
    'o'=>'orange',
    'b'=>'banana'
);
